Question

what is the meaning of a sentence ' paricle projected vertically upwards'.​

Answer 1

Answer:

If h is the maximum height then h=u2/2g

Time taken to reach height h, t=u/g

Let v be the speed at 3h/4then v2=u2−2g(3h/4)⇒v=u/2

let t′ be the time taken to reach 43h then u/2=u−gt′⇒t′=u/2g=t/2

Step-by-step explanation:

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